{
  "manageEntity": {
    "action": "Update",
    "entityId": "961321566",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf558710ee898798d031aa981c33994068c2fbb22eee8a0925f8d0fc061cda9ab",
    "signature": "0xa19a5342d12527e0dcb550cf2e237d15e70ccd4b96e4153499653e3e25f92adc63e00e28cb7d9585bb08d4c2e71cf5f56acc880c453aa9a9a02f0b0cb10158c41b",
    "signer": "0x6E107B2Dd05e6302adF812aEeD74690F1f013bf8",
    "userId": "961321566"
  }
}